Improvement in paper and print-roiiers



n mulini gime JULIUS SMITH, OF BOSTON,` MA SSACHUSETTSfASSIGNOR IOHIMSELF AND RICHARD SMITH..

Leners' Patent No. 90,695, dated .rune 1, 1869.

IMPROVEMENT IN PAPER .AND PRINT-ROLLERS.

The Schedule referred to in these Letters Patent and making part of thesame.

- To all whom it may concern Be it known that I, H. J ULIUs SMITH, ofBoston, in the county of Suffolk, and State of Massachusetts, haveinvented Improved Paper and Print-Rollers; and I do hereby declare thefollowing to be a full and cor- -rect description of the same, referencebeing had to the accompanying drawings, in which the figure represents apaper-roller made of nickel, as hereinafter set forth. r

The improvement consists in making rollers either wholly of nickel, orof metal coated with nickel, by electro-deposition or otherwise, saidrollers being intended for use in the manufacture of paper, the printingof cloths, or other, analogous arts, in which rollers possessinghardness, smoothness, and nou-corrcsibility are important to theperfection of the work.

The advantages which nickel possesses for the purposes specified are,first, hardness; second, smoothness; third, non-corrosibility; and,fourth, cheapness. It can be made as hard-as tempered steel, and is thenlittle liable to be scratched', or dented, a quality of particularimportance in paper-making, since such dents and scratches blemish thesurface of the paper. Its smoothness enables it to impart a line finishto the surface of the articles subjected to its action. Itsnon-corrosibility enables it to resist the attack of acids and otherchemicals in contact with which it may be used, thus preserving theintegrity of its surface, and preventing the roughness and stains whichwould result from corrosion and be imparted to the articles produced byits use. Its cheapness gives it 'a preference over` hardrubber rolls orthe ordinary chilled cast-iron calenders.

For print-rolls, the designsl can be engraved in soft metal, which is tobe afterward plated with nickel, in anyl known mode.

Having thus described my improvement,

What I claim, and desire, to secure by Letters Patv ent, is-

As a new article of manufacture, and an improvement in the arts ofpaper-making, cloth-printing, and other analogous arts, the rollersmade, as hereinbefore specified, ot' nickel, or of metal coated withnickel by electro-deposition or otherwise.

The above specification of my said invention signed and witnessed atBoston, this 30th day of April, A. D.

H. J ULIUS SMITH.

Witnesses:

`GHARs G. TILDEN,

GEmH. MORSE.

